Where do you go to learn how to make ice cream?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

What does this rebus mean?

O
N
C
E
TIME

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?